[ suhl-kuhs ]

noun,plural sul·ci [suhl-sahy]. /ˈsʌl saɪ/.
  1. a furrow or groove.

  2. Anatomy. a groove or fissure, especially a fissure between two convolutions of the brain.

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Origin of sulcus

1655–65; Latin: furrow

Other words from sulcus

  • sub·sul·cus, noun, plural sub·sul·ci.

Words Nearby sulcus Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use sulcus in a sentence

British Dictionary definitions for sulcus


/ (ˈsʌlkəs) /

nounplural -ci (-saɪ)
  1. a linear groove, furrow, or slight depression

  2. any of the narrow grooves on the surface of the brain that mark the cerebral convolutions: Compare fissure

Origin of sulcus

C17: from Latin

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012